The latter being "Intelligent Design", of course.
Lamarckian biology was not "Intelligent Design."
It was a theory that acquired traits induced by changes in the environment could be inherited by the offspring of an organism, as opposed to Darwinism which states that inherited traits arise only at random.
Commies loved Lamarck because it could be used to back up their social engineering projects. Humans could be improved, in an inheritable way, simply by changing their environment.